Air valve



FIG. 1 is a perspective view of an air valve showing my new design in the closed configuration;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view of an air valve showing my new design in the valve open configuration;

FIG. 9 is a top plan view thereof;

FIG. 10 is a left side elevational view thereof;

FIG. 11 is a right side elevational view thereof;

FIG. 12 is a front elevational view thereof; and,

FIG. 13 is a rear elevational view thereof. 

The ornamental design for an air valve, as shown and described. 